I'm modifying the supply cabling in my central heating system ready for a new boiler to be fitted (not by me I hasten to add). The old cable is 3-core and earth for supply live/neutral/earth plus a switched live.
The new boiler has a pump over-run facility which requires a 2nd switched live. I have various ceilings down and floors up for other work but nonetheless would like to keep the number of cables to a minimum.
The existing 3-core/earth looks like 6-amps rating which I guess is the correct thing to have (it's a typical Y-Plan system). So I'm wondering if there is such a thing as 4-core/earth rated at 6 amps. All the cable I have seen so far appears to be component connection flex at 3 amps. Is there such a thing at 6 amps?
If there is no such cable (or this isn't how it's normally done anyway) any advice would be appreciated. It just feels a bit clumsy banging up a couple of 2-core/earth cables but if that's how it's done...
Thanks,
Robert
The new boiler has a pump over-run facility which requires a 2nd switched live. I have various ceilings down and floors up for other work but nonetheless would like to keep the number of cables to a minimum.
The existing 3-core/earth looks like 6-amps rating which I guess is the correct thing to have (it's a typical Y-Plan system). So I'm wondering if there is such a thing as 4-core/earth rated at 6 amps. All the cable I have seen so far appears to be component connection flex at 3 amps. Is there such a thing at 6 amps?
If there is no such cable (or this isn't how it's normally done anyway) any advice would be appreciated. It just feels a bit clumsy banging up a couple of 2-core/earth cables but if that's how it's done...
Thanks,
Robert